For the first time in 50 years, the Conservatives have won a by-election in Scotland, taking Aberdeen South from the SNP with a 15% swing and a majority of 6,050. The victory, won by Tory candidate Douglas Lumsden with nearly 50% of the vote, has been hailed by party leader Kemi Badenoch as a clear message about oil and gas policy.
By-elections are triggered when a sitting MP resigns. In this case, the SNP's Stephen Flynn — now Economy Secretary in John Swinney's government — gave up his Westminster seat after being elected to the Scottish Parliament. The contest quickly became a proxy battle over the future of the North Sea oil and gas industry, which supports tens of thousands of jobs in the northeast of Scotland.
“Explains the Aberdeen South by-election win and its impact on UK energy policy and net zero debate.”
The result is significant for several reasons. It is the first time the Tories have won a by-election in Scotland since 1973, and it came against a backdrop of turmoil for the SNP, whose former chief executive Peter Murrell recently pleaded guilty to stealing £400,000 from party funds. Labour, meanwhile, finished fourth behind Reform, winning just 5.4% of the vote.
Energy policy was the defining issue. The Conservatives campaigned heavily on a promise to boost North Sea drilling, arguing that the current tax rate — which sees operators hand over 78% of profits under the Energy Profits Levy — and tight regulations are causing steep job losses. The SNP has called for easing the tax burden but insists new drilling must not violate climate commitments. Labour, under Ed Miliband's influence, has pledged to issue no new licences in the North Sea at all. Badenoch, who has abandoned her party's previous commitment to net zero by 2050, described the by-election as "a referendum on oil and gas" and said "Aberdeen has sent a message to the Labour government and the SNP that we will not be ignored".
For UK readers, the by-election matters because it could signal a shift in national energy policy. Aberdeen has been chosen as the home of GB Energy, Labour's state-owned energy company, but the city's voters rejected that party's stance. The result gives Badenoch evidence that her pro-drilling, anti-net-zero strategy can win votes — though it remains to be seen whether it will work in seats less dependent on the oil industry. It also highlights a broader tension: the UK must balance energy security and jobs with its climate goals, and the debate over how fast to transition away from fossil fuels is far from settled.
Q: Why was the Aberdeen South by-election important? It was the Conservatives' first by-election win in Scotland in over 50 years. The result is seen as a verdict on the SNP and Labour's handling of the oil and gas industry, and gives Tory leader Kemi Badenoch a boost as she pushes a pro-drilling, anti-net-zero agenda.
Q: What are the parties' positions on North Sea oil? The Tories want to scrap the Energy Profits Levy and issue more drilling licences, abandoning net zero targets. The SNP advocates cutting the tax burden but only allowing drilling that meets climate commitments. Labour opposes new licences entirely, a policy championed by Ed Miliband.
Q: Could this change UK net zero policy? Possibly. Badenoch sees the victory as a mandate to abandon net zero by 2050. If the Tories can hold or gain more seats on that platform, it could pressure Labour or SNP to soften their climate policies. However, the North Sea is in decline, and the long-term economics remain uncertain.
The by-election was a single contest, but it has national implications. Kemi Badenoch is now using it to justify her net zero reversal, while the SNP and Labour face pressure to rethink their positions. With the next general election on the horizon, the fight over the UK's energy future is only heating up.